The Pro Series cylinder head bolts from ARP are cold-forged to ensure molecular integrity. They are heat-treated prior to thread rolling and machining, and are rated at a whopping 190,000 psi. The Pro Series are also available with hex and 12-point heads. All kits come complete with hardened parallel washers for even load distribution and accurate torque readings.

More From This Category

ARP Cylinder Head Stud, Pro-Series, 12-point Nut, For Chevrolet SB, SBC w/ -12 Aluminium Block, Kit

ARP Cylinder Head Stud, Pro-Series, 12-point Nut, For Chevrolet SB, SBC w/ -12 Aluminium Block, Kit

$471.46

ARP Cylinder Head Stud, Pro-Series, 12-point Nut, For Chevrolet SB, 7/16 in.-3/8 in. stepped, Kit

ARP Cylinder Head Stud, Pro-Series, 12-point Nut, For Chevrolet SB, 7/16 in.-3/8 in. stepped, Kit

$841.80

ARP Cylinder Head Stud, Pro-Series, 12-point Nut, For Chevrolet SB, Dart SPortsman, .950, coarse thread, Kit

ARP Cylinder Head Stud, Pro-Series, 12-point Nut, For Chevrolet SB, Dart SPortsman, .950, coarse thread, Kit

$466.34

ARP Cylinder Head Stud, Pro-Series, 12-point Nut, For Chevrolet SB, Rodeck Aluminium Block, GB2300 Heads, Kit

ARP Cylinder Head Stud, Pro-Series, 12-point Nut, For Chevrolet SB, Rodeck Aluminium Block, GB2300 Heads, Kit

$995.90